CalMag OAC™


Does more than simply prevent common deficiencies.

CalMag OAC Organic is a groundbreaking calcium and magnesium supplement for indoor, outdoor, and hydroponic growing environments. It promotes photosynthesis and strong cell walls.


Packed with minerals. One stop shop.

OAC not only contains Calcium and Magnesium, but it also contains a full array of micros: Iron, Sulfur, Manganese, Molybdenum, Boron, Copper.

Most bioavailable through organic acid chelates.

It features an organic acid chelate derived from 9 plants that immediately drives calcium and magnesium inside of plant cells, and allows for these critical elements to be used for growth and photosynthesis.

Highly cost effective nutrition.